Tool for capping cans



l. NEWMAN.

TOOL FOR CAPPING CANS.

APPLICATION'FILED SEPT, 26, 1919.

1,370,039, Patented Mar. 1,1921.

UNITED. STATES rsrnon NEWMAN, on NEW YORK, n. Y.

TOOL FOR CAPPING CANS.

Specification of Letters Patent.

Patented Mar. 1, 192i.

Application filed september- 26, 1919. Serial No. 326,641.

To all whom it may concern:

Be it known that I, ISIDOR NEWMAN, a citizen of the United States, and resident of New York city, in the county of Bronx and State of New York, have invented certain new and useful Improvements in Tools for Capping Cans, of whichthe followlng is a specification.

My invention relates to improvements 1n tools or machines adapted to secure caps in filling holes of cans and the like, such as tin cans. In Letters Patent granted to me May 14, 1918, No. 1,266,519, I have set forth a tool wherein rolls operate withln a cap to expand it withinthe neck of the can and rolls operate on the transverse flange of the cap to spin the flange over the neck of the can during rotation of the tool. My present invention has reference to improvements in the class of tools re ferred to, and is particularly adapted for use in the class of tools disclosed in my aforesaid Letters Patent. I

One of the objects of my invention is to provide means to permit control of the extent of lateral movement of the inner rolls within the can cap, and another object is to provide means to cause and regulate the lateral movement of the outer rollers for operation upon the flange of the cap, whereby the desired spinning of the cap upon the flange of-the can neck may be effected in accordance with the character of material to be operated upon and the dimensions of the cap.

My invention comprises novel details of improvement that will be more fully hereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings forming a part hereof where- 1n- Figure 1 is a side view of a cap, seaming tool embodying my invention;

Fig. 2 is an under side viewthereof;

Fig. 3- is a top plan View; 7

Fig. 4; is a section on the line 4-4 in Fig. 2;

Figs. 5 ner rolls; I

Figs. 7 and 8 are sectional diagrammatic views illustrating steps in the operation of my improved tool.

Similar numerals of reference indicate corresponding parts in the several views.

The spindle 1 is adapted to have longi and 6 are detail views of the in g-the cams 13. the latter will be engaged by ,thbf'cammed portion 14 to cause the arms tudinal movement in a bore 2- 2 wh1ch parts may be united to rotate together. For such purpose. the hub 2 of body 2 1s shown provided with a longitudinal slot 3 receivmg a pin or projection 4: from the spindle 1. At 5 are indicated rolls adapted to fit within the cap 6 that s secured 1n a hole 7* in can'body 7, as in the head of said body, to,-'expand' the margin of the cap against the adjacent marginal portion of the can body. The stems 5* of rolls 5 are shown slidably mounted -1n bores 8 of arms 8, the upper portions of wh1ch arms are pivotally supported upon gins or the like 9 fitted in holes in body 2.

ald arms are shown between jaws 10 on body 2, the pivots 9 passing through said aws and arms. The stems 5 are retained of the body 1n bores 8 by means of screws 11 secured to arms 8 and entering annular recesses 5 in sand stems 5, and springs are provided normally to push the rolls 5 outwardly. For such purpose I have shown springs 12 within the bores 8 and bearing against the adjacent ends of stems 5 and against the bottoms of said bores, (Fig. 6), whereby as the rolls receive pressure the stems may slide within the bores and will be pushed outwardly when such pressure is relieved. The arms 8 are arranged around the spindle 1 1n a concentric manner, and said spindle is adapted to spread said arms laterally to force the rolls 5 against the inner surface of the side of the wall of cap 6, for wh1ch purpose said arms at their lower ends are provided with cam-like surfaces 13 adapted to be engaged by the cammed or downwardly inclined portion 14 at the inner end of spindle 1. The arms 8 are maintained pressed toward spindle 1 by means of springs a which are located in recesses in body 2 and operate against the portions 8 of said arms that are laterally disposed with respect to the pivots 9, Fig. 4'. When the spindle 1' is moved outwardly with respect to body 2 the cammed portion 14 of the spindle will be drawn back from the-ca'm surfa-ces 13, and when the spindle is pushed' inwardly or in the direction of 8 to spread apart to correspondingly spread the rolls 5 and force them against the, inner wall of cap "6. In order to control the extent of outward lateral movement of rolls .5 with respect to wall 6" of cap 6, I provide means to vary as desired the extent a movement of spindlelinto body 2 toward threaded at 1" and receiving corresponding threads f within the bore 15 of stop member 15- whereby said member and spindle are adjustably connected, which member at.

its inner end is adapted to engage an adjacent stop, shown as a hub.2 of body 2, whenthe parts 1 and 15 are pushedtoward-the cam surfaces 13. A screw 17 threaded in against spindle 1 to retain t e latter securelyuattached to member 15 for rotation of'the s indle by said member. The member 15 is 'a apted to be attached .to a spindle or By adjusting the arms 8 may be regulated in such a manner that the extent of movement of cam 14 against said cam surfaces can be controlled,

so that when member 15 engages the stop or'hub 2 'and is stoppedthereby the spindle will have spread the arms 8' with rolls 5 to a desired extent and further spreadin apart of rolls 5 within the can head 6 W11 be stopped. By the means descrlbed res.- sure of said rolls against the side wal 6" of can head 6 for spinning or spreading sald wall .against the neck 7 of the can head is controlled in accordance with the. inner diameter of the can-head and the gage of I tool is advanced to the cap whereupon the the metal.

Rollers 18 are adapted to engage the lat erally extending flange 6" of. cap 6 for spinning or seaming 1t over the outturned neck or flange 7 of the can body surrounding the hole 7 thereof, and said rollers are movably supported to have inward movement while spinning said flange. The rollers 18 are shown journaled by means of stems 18 in bores at the lower ends of arms 19 that are pivotally supported upon body 2- by means of pivots 20. Said body is vshown provided with spaced jaws 21 receiving arms 19 and pivots or pins 20 whereby said arms may rock. I have shown the rollers 18 rotatively retained upon arms 19 by means of springs 22 secured by screws to said arms and bearing against said rol s.-

Springs 24 locatedin bores of body 2 bear against arms 19 below their pivots to normally spread ,said armsoutwardly. The upper-ends of arms 19 are cooperative with a controlling member 1 26 shown having a downwardly tapered or cam-like surface 26 between the upper ends of said arms, whereby when the member. 26 is raised the arms with their rollers 18 will be spread outwardly and when said member is depressed between the upper ends of said arms that lower ads with the ro1lers' '1 8 will be moved inwardly. Member 26 is adjustablyattached to member 15 for which purpose member 26 has an internal threaded bore recelvmg external threads 27 on member 15'. A screw'28'1'n member 26 is adapted to engage member 15 to secure said members .a bore in member 15 is ada ted to bear\at a predetermined moment to cause the rollers 18 to move inwardly as required, and: by means of the position of member 26 wlth respect to spindle 1 and the stopping oi the inward movement of said spindle by engagement of member 15 with the endof hub 2 the extentof inward movement of rollers 18 may 'be controlled. 'I have shown three rolls'5 concentrically disposed around spindle 1 at'equal distances apart'and three rollers 18 disposed outside -0 the circumference of rolls 5 and equally spaced apart but in spaced relation thereto on radii intermediate the adjacent rolls 5 (Fig.2), whereby the three rolls 5 may be moved outwardly and the three rollers 18 may be moved inwardlys'imultaneouslyduring spinning of the cap to the can head, and whereby operation of the rolls and-rollers upon the'can will be balanced and uniform.

Any desired numberiof rolls 5 and rollers 1.8 may be used instead of three each.

' To secure'the cap on the can bod the cap is seated in hole 7 of the can hea and the rolls-5 will enter the pa and the downward pressure of'the tool will cause the 'cap to be pushed by the rolls snugly into the hole 7 to force its flange 6, upon the neck 7 and the cam part 14 of -the' spindle will enga the cam parts 13"o'ff arms 8 to spread tfi: latter for forcing the rolls 5 into engagement with the marginal portion of the ca The tool will be-rotated and the. rolls 5 will be rotated in the ca so that continued downward pressure 0? the spindle 1 will cause rolls 5 to bef'gradually pressed outwardly to .spin oregcpandthe side wall 6 against the adjacentiff ortion of the can body. below-the neck 7 'vl hile the rolls 5 are acting upon the cap the rollers 18 will bear upon the portion of the flange 6 that ex tends beyond the neck 7 to'spin said portion of the flange over the neck. While the rolls and rollersare being pressed downwardly with body 2 the member 26 will engage the upper ends of arms 19 to cause the rollers ing rotated by and with spindle l the tool will be caused to move toward the can body by reason of the natural and autom'atic effort of the-body to slide along the spindle assisted by the pressure of member 26 upon arms 19;

wardly when the spindle moves in the direction of the roll.

5. A tool of the class described compris- I ing a spindle, a body movable relatively to the spindle, an arm movably carried by the body,a roll carried by the arm, means cooperative between the spindle and arm for moving the roll outwardly, a roller spaced from the roll, an arm carrying; said roller and movably supported by the body, and a cam-like member. connected with the spin- The simultaneous cooperating action of the dle to actuate the arm for moving the roller inner rolls 5 and outer rollers 18 cause the spinning of the cap to the neck of the can body for effecting a hermetical seal in an expeditious manner. When the cap has been sealed in the can head the spindle will be. pulled outwardly whereupon the outward pressure on the arms 8 will be relieved as 20- well as the pressure upon arms 19 by member 26 so that the tool may be readily removed from the cap.

Having thus described my invention, what I claim and desire to secure by Letters Patent is z- 1. A tool of the class described comprising a spindle, a roll mounted for lateral movement relative to the spindle, 'a roller outside of and independent of the roll mounted for lateralmovement relative to the spindle and rotative in a circle outside of the circle described by the rotation of the roll, and means operative with the spindle to move said roll and roller laterally in opposite directions.

2. A tool of the class described comprising a spindle having acam-like member, a r0 1 supported for lateral movement by the spindle, the latter having means to movethe roll laterally, a roller outside of said roll and movable means supporting said roller and cooperating with said member for moving the roller inwardly when the spindle moves longitudinally to move theroll outwardly.

.3. A tool of the class described comprising a spindle, a body movable relatively to the spindle, a roll, means movably connecting the roll with the body, said means being cooperative with the spindle for moving the roll outwardly, a roller outside of the roll, an arm movably supporting the roller upon the body, and means connected with the spindle for operating said arm to move the roller inwardly when the spindle moves in the direction of the roll. I

4. A tool of the class described comprising a spindle, a body movable relatively to the spindle, an arm movably carried by the body, a roll carried by the arm, means cooperative between the spindle and arm for moving the roll outwardly, a roller-spaced from the roll, an arm carrying said roller and movably supported by the body, and means connected with the spindle for operating said arm for moving the roller ininwardly when the spindle moves in the direction of the roll.

6; A tool "of the .class described comprising a spindle, a body movable relatively to the spindle, a plurality of arms disposed around the spindle, rolls carried by said arms, said spindle and arms having cooperative portions for moving the rolls outwardly when the spindle moves relatively to the arms, a plurality of arms pivotally carried by the body outside of the first named arms and provided with rollers outside of said rolls, and means connected with the spindle for actuating the second named arms when the spindle actuates the first named arms.

' 7 A tool of the class described comprising a spindle, a body movable relatively to the spindle, three rolls disposed concentrically with respect to the spindle,- arms carrythe body, cooperating surfaces between the spindle and arms for moving the latter with the rolls outwardly upon movement. of the spindle toward the rolls, three rollers disposed outside of said rolls, arms supporting said rollers and pivotally carried by said body in spaced relation to the first named arms, and means connected with said spindle and cooperativewiththe second named arms to move'the rollers inwardly when the rolls are moved outwardly.

8. A tool of the class described comprising a spindle, a body movable relatively to the spindle, three rolls disposed cencentrically with respect to the spindle, arms carrying said rolls and pivotally supported by the body, cooperating surfaces between the spindle and arms for moving the latter with the rolls outwardly upon movement of the 9. A toolof the class described comprising a bod having a stop, a spindle slidable in the b0 'y, a roll, means movably supporting the roll upon the body, said means and spindle having cooperative portions for causing lateral movement of the roll and a member adjustable along said spindle and adapted to engage said stop to control the said roll by said spindle having cooperative portions for causing lateral movement of the roll, a roller outside of said roll, an arm carrying said roller and pivotallycarried by said body, a member adjustable along said spindle and adapted to engage said stop and a second member adjustable along the first named member adapted to actuate said arm to move the roller inwardly when the spindle moves the roll outwardly.

11. A tool of the class described comprising a body, an arm movably carried by the body, a roller carried by the arm, and a member connected with the body to rotate the latter and movable relatively to the body, said member having a cone-likecontrol ing member cooperative with the arm to operate the latter to move the roller later-' 1 "specting the arm.

' 12. A tool of the-class described comprising a body, a spindle slidably connected to the body to rotate the latter, a cone-like controlling member, threads connecting the member to the spindle, an arm pivotalliz carried by the body and cooperative wit said member to be rocked thereby when the member moves along the arm, and a roller earned by the arm to be moved laterally by the latter. V l

Signed at New York in the county of New York and State of New York this 24th day of September A. D. 1919.

ISIDQR NEWMAN. 

